Yuin PK2 earbuds for $63 (Prime shipping)

The Hifiman store offers the Yuin PK2 actual earbuds for $79, but if you want to pay less and receive them faster, a couple of fulfilled by Amazon marketplace sellers (free 2-day Prime shipping) are offering them for $63 with free shipping at amazon.com. I haven’t heard of either marketplace seller, but because the order is “fulfilled by Amazon”, it makes returns, shipping, payment issues, and such much easier since you just talk to Amazon’s regular customer service. You don’t have to “fight” with the marketplace sellers directly.